First range test… and we’ve got issues! My Aero Precision M4E1 Pro Series AR-15 isn’t cycling correctly at the range, and I’m breaking down exactly what’s happening.
The Problem:
Full mag? The gun jams after the first shot
Single round? Fires, but BCG won’t lock back
Based on these symptoms – Possible causes? Could be a BCG defect, gas system issue, or buffer problem
Making the Most of It:
Instead of calling it a day, I worked on zeroing my optic and testing the trigger—and aside from the cycling issue, this build feels incredible!
AR-15 Build Parts List & Links
Optic: (Fast target acquisition with superior clarity)
Trigger: 
(Crisp, clean, and perfect for precision shooting)
Flashlight Green Laser: (High-lumen tactical light for low-light conditions)
Magpul Sling:
Rail Covers:
More build details & parts coming soon! Let me know if you have any recommendations or upgrades in the comments!
Next Steps:
I’ll start troubleshooting with a lighter buffer spring before considering sending it back to Aero Precision. Their customer service is top-tier, so I know I’ll get it figured out.
Stay tuned for the next episode as we fix this cycling issue!
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Drop a comment if you’ve had similar cycling issues—what do you think is causing it?
#AR15Build #AeroPrecision #proseries #Geissele #AR15 #GunFail #BurroCanyon #M4E1 #OpticZeroing #ShootingSports #GunProblems #build
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